> Now let's see how much kwh an average windmill uses... a basic search gives us a rate of 400k kwh a month. Pets just be generous and round to 5 million kwh annually. The average turbine size in the US is 2.43MW with an average capacity factor of 42%. That means, on average, each wind turbine in the US produces the equivalent of a little over 1 million watts. That's 8,940,456 kWh per year per turbine. Some more, some less. > Now we have to figure out how many kwh an electric car uses to move 100 miles.... average is 30kwh for 100 miles. The EPA rating for electric cars is around 25 kWh per 100 miles, and many people get more than that. The fleet average is including heavy vehicle like buses and trucks, and is skewed because of the relatively high annual mileage of commercial vehicles. > Then finally let's find out how far America drives in a year... the quick search I just made gave me 3 trillion miles In 2018, there were 1,404,507,000,000 passenger vehicle miles driven in the US. So 1,404,507,000,000 miles requires 351,126,750,000 kWh, or 39,273 wind turbines. The US currently has about 67,000 wind turbines, so we'd need to increase it by 50%.